21230110111422 has 32 divisors (see below), whose sum is σ = 44311168495872. Its totient is φ = 6768279377024.

The previous prime is 21230110111421. The next prime is 21230110111481. The reversal of 21230110111422 is 22411101103212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230110111421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7157688 + ... + 9679499.

It is an arithmetic number, because the mean of its divisors is an integer number (1384724015496).

Almost surely, 2^{21230110111422} is an apocalyptic number.

21230110111422 is an abundant number, since it is smaller than the sum of its proper divisors (23081058384450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21230110111422 is a wasteful number, since it uses less digits than its factorization.

21230110111422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16846352.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 21230110111422 its reverse (22411101103212), we get a palindrome (43641211214634).

The spelling of 21230110111422 in words is "twenty-one trillion, two hundred thirty billion, one hundred ten million, one hundred eleven thousand, four hundred twenty-two".